Bump next-i18next from 12.1.0 to 15.2.0

Bumps [next-i18next](https://github.com/i18next/next-i18next) from 12.1.0 to 15.2.0.
- [Release notes](https://github.com/i18next/next-i18next/releases)
- [Changelog](https://github.com/i18next/next-i18next/blob/master/CHANGELOG.md)
- [Commits](i18next/next-i18next@v12.1.0...v15.2.0)

---
updated-dependencies:
- dependency-name: next-i18next
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -31,7 +31,7 @@
     "framer-motion": "^8.5.0",
     "leaflet": "^1.9.4",
     "next": "13.5.4",
-    "next-i18next": "^12.1.0",
+    "next-i18next": "^15.2.0",
     "next-language-detector": "^1.0.2",
     "prettier": "^2.7.1",
     "react": "18.2.0",